Data as of Oct 28, 2026.

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BWET vs MBB: Differences, Returns & Fees

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BWET is a commodity futures fund and MBB a bond index fund, and over the year to Oct 28, 2026, BWET returned +5,121.7% against −0.8%.

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Net assets on Oct 28, 2026: $178m for Breakwave Tanker Shipping ETF and $35.5bn for iShares MBS ETF.

At a glance
+5,121.7%
BWET total return, 1 year
−0.8%
MBB total return, 1 year
4.68%
BWET expense ratio
0.04%
MBB expense ratio

Pair scorecard

MBB costs 4.64 points a year less; their one-year returns differ by 5122.5 points; MBB is far larger, $35.5bn against $178m.

BWET vs MBB: Differences, Returns & Fees
MeasureBWETMBB
Return
Total return, 1 year+5,121.7%−0.8%
Drawdown
Below its high11.2%, high on Oct 8, 2026
Benchmark
What it tracksTanker freight futuresBloomberg U.S. MBS Index
Cost and size
Expense ratio4.68%0.04%
Net assets$178m$35.5bn
Holdings
Holdings in commonnot published

Method

Side by side

BWET Breakwave Tanker Shipping ETF MBB iShares MBS ETF
Where it sits Commodity ETF Bond ETF
What it is Holds tanker freight futures Tracks an index of mortgage-backed securities
Total return, 1 year +5,121.7% −0.8%
Its benchmark over the same days not measured −1.1% (SPMB)
Gap to its benchmark not measured +0.3 pts vs SPMB
Expense ratio 4.68% 0.04%
Holdings not counted 10813
Net assets $178m $35.5bn

BWET and MBB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
BWET

Its expense ratio is 4.68%, for the year to Jun 30, 2026, as its 10-K states.

BWET holds tanker freight futures. Over the year to Oct 28, 2026 it returned +5,121.7% with distributions reinvested. It sat 11.2% below its high of Oct 8, 2026 on Oct 28, 2026.

MBB

MBB tracks an index of mortgage-backed securities. Over the year to Oct 28, 2026 it returned −0.8% with distributions reinvested, against −1.1% for its benchmark, the Bloomberg U.S. MBS Index. The prospectus expense ratio is 0.04% a year.

Questions people ask

Which returned more over the last year, BWET or MBB?
In the year to Oct 28, 2026, with distributions reinvested, BWET returned +5,121.7% and MBB −0.8%.
Which is cheaper, BWET or MBB?
MBB is cheaper, by 4.64 percentage points a year. That is about $464 on $10,000 held for a year. Fees come from each fund's own filings.
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ETFIQ, BWET against MBB, data as of Oct 28, 2026. https://etfiq.com/compare/any/bwet-vs-mbb

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